Disk-bearing.



Patented July 4, 1899. A. LINDGREN.- v V DISK BEARING.

(Application filed Feb. 25, 1899.)

(No Modl.)

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AUGUST LI'NDGREN,

oF MOLINE, ILLINoIs, ASSIGNOR PLOW COMPANY, or ILLINOIS.

PATENT OrFIcE.

To THE MOLINE DISK-BEARING.

SPECIFICATION forming part of Letters Patent No. 628,204, dated July 4, 1899. Application filed February 25, 1899. Serial No. 706,872. (No model.)

' Illinois, have invented a new and useful Improvement in Disk-Bearings, of which the following is a specification.

This invention has reference to a bearing for disk-blades for plows, harrows, cultivators, and analogous machines, the object being to provide a bearing in which the renewal of the parts may be effected at a minimum cost; and to this end the invention consists in forming the bearing of parts designed to be readily removed and interchanged, so that when these parts become worn they maybe removed without renewing. the bearing as a whole.

The invention also consists in'th'e details of construction and combination of parts hereinafter described and claimed.

In the accompanying drawings, Figure 1 is an elevation of a disk and its bearing made in accordance with my invention. Fig. 2 is a central longitudinal section through the same. Fig. 3 is a transverse section on the line-a a of Fig. 2.

Referring to the drawings, A represents a cutting-disk of concave-convex form,as usual, having a central perforation surrounding a central fastening-bolt B and seated in the concave face of a supporting disk-like casting.

O, the outer peripheral edge of which bears against the rear face of the disk. This castin gis provided at its center with a boss or hub D, surrounding the bolt 13, which hub has its rear end squared, the bolt extending some distance beyond the end of the hub, where it is provided with an angular head I). Seated around the boss is a bearing-sleeve E, formed on its interior to fit the squared end of the hub to turn with it, and provided with an inwardly-extendin g flange or shoulder e, extending snugly around the bolt between its head I) and the end of the hub. By tightening the nut b on the end of the bolt the flangewill be clamped tightly between the head and the end of the hu b,and the disk, the casting, and bearing-sleeve will be thus firmly held together in fixed relations. These parts have their bearing in and are supported by a fixed conical shell F, adapted to be secured to the frame of the machinein any appropriate manner.

At its largerend the shellext'ends within a flange c on the rear face'of the casting O'to exclude the dust, and at this .point the shell is formed on its interior at diametrically opposite points with recesses or slots f, in which are seated, respectively, bosses g on the outer sides of two bearing-plates G in the form of half-rings extending around the interiorof the shell and surrounding the front end of the bearing-sleeve E. These half-rings are held in position and prevented from falling out by screw-bolts H, tapped through the shell with their inner ends bearing in sockets in half-rings. The bearing-sleeve E and attached parts, including the disk an'dthe casting 0, are prevented from escaping by means of an annular flange e on the bearing-sleeve extending in the rear of the inner ends of the half-rings, as clearly shown in Fig. 2.

'From the foregoing description it is seen that the bearing-sleeve carrying the disk has its bearing at the front against the removable half -rings, which act as keys to retain the disk and the parts connected thereto within the conical shell. The end thrust of the parts is borne by bearing-head K, extending into the rear end of the conical shell, which latter is formed with an internal flange 7c, clamped between the head and a washer 7t, encircling a bolt k fixed to the head and threaded at its outer end to receive afastening-nut 10 This head is rounded, as shown, to form a bearing-surface for the end of the bearing-sleeve E, the latter being formed on its interior at its end to fit around the head, which arrangement insures the centering of the rotary parts and forms a firm bearing to receive the severe end thrusts to which the disk in practice is subjected.

' In operation the lower edge of the disk receives the greatest strain and pressure, and

due to the pressure on the disk at this point will be borne by one half-ring only, and when this ring is so far worn as to require renewal it may be removed and the opposite half-rin g substituted.

It will be seen that in my improved bearing the entire wear is on three parts onlyone on the front of the shell, the bearing-sleeve, and the bearing-head at the rear end of the shell-and these parts being comparatively small and readily detachable their renewal may be effected quickly and at little expense.

In assembling the parts the bearing-head is first fixed in position in the end of the shell and the bearing-sleeve slipped over the bolt B and seated in place around the head. The two half-rings are thenset in place within the outer end of the shell and surrounding the outer end of the bearing-sleeve and the fastening-screws inserted to hold them in place. The casting C is then applied over the bolt and pushed back within the bearingsleeve, the cutting-disk being passed over the bolt and the parts finally secured by applying the nut b on the outer end of the bolt.

Having thus described my invention, what I claim is- 1. The combination with a fixed supporting-shell, of removable half-rings mounted therein, a rotary cutting-disk, and a bearingsleeve movable with the disk and mounted in the shell within the half-rings.

2. The combination with a fixed supporting-shell, of a rotary cutting-disk, a supporting member fixed to the disk and provided with a hub, means for securing the supporting member fixedly to the disk, a bearing-sleeve surroundingand fixed to thehuband mounted to revolve within the shell.

3. The combination with a fixed supporting-shell, of a bearing-ring therein, a rotary cutting-disk, a supporting-plate fixed thereto and provided with a hub, and a removable bearing-sleeve surrounding the hub and movable therewith and mounted within the bearing-ring.

4. The combination with a fixed supporting-shell of a rotary cutting-disk, a bearingsleeve movable with the disk and mounted within the shell, and a removable bearinghead sustained in the end of the shell in position to receive the end thrust of the sleeve.

5. The combination with a fixed supporting-shell, of a removable bearing-ring sustained within its front end, a rotary cuttingdisk, a bearing-sleeve movable with the disk and having a bearing'against the ring, and a removable bearing-head at the rear end of the shell against which the end of the sleeve bears.

6. The combination with a fixed supporting-shell, of a rotary disk, a bearing-sleeve movable with the disk and mounted within the shell, and a bearing-head sustained by the shell in position to receive the end thrust of the sleeve and means for adjusting the head around a central longitudinal axis.

7. In a disk-bearing, the combination of a bearing-head in position to receive the end thrust of the disk and means for adjusting said head around aeentral longitudinal axis.

8. The combination with a fixed supporting-shell, of a rotary cutting-disk, a supporting member provided with a hub, a bearingsleeve surrounding the hub and mounted to revolve within the shell, a central bolt passing through the disk and hub and engaging the sleeve and serving to hold said parts in fixed relations.

9. The combination with a fixed supporting-shell of two half-rings sustained therein and a cutting-disk having a hearing within the half-rings said half-rings arranged respectively above and below the axis of the disk; whereby the pressure of the disk will be received by one half-ring only.

In testimony whereof I hereunto set my hand, this 14th day of February, 1e99, in the presence of two attesting witnesses.

AUGUST LINDGREN.

lVitn esses:

F. G. ALLEN, THEo. STARKs. 

